Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Annex approval rate in Chorley

Chorley approved 88.2% of annex applications, based on 17 decisions analysed.

Last updated: October 2026

88.2%
annex approval rate
17
Annex decisions
15
Approved
2
Refused
92.9%
Chorley overall

This rate rests on 17 decisions, a small sample, so treat it with caution.

How annex applications compare in Chorley

Annex (17 decided)
88.2%
Chorley all applications (3,216 decided)
92.9%

Before you apply in Chorley

This page shows the council-wide rate. The free check shows decisions near your property.

✓ Your ward's annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Chorley →

Planning professional? PlanningLens runs refusal alerts and evidence packs for Chorley and any other published UK council. See the data services →

Other project types in Chorley

Rear extension (1,068 decided)
92.9%
Garage and parking (557 decided)
91.0%
Side extension (457 decided)
93.0%
Conservatory (339 decided)
93.2%
New build (333 decided)
88.3%
Other extension (245 decided)
93.5%
Outbuilding (181 decided)
86.2%
Dormer (172 decided)
92.4%
81.8%
Front extension (97 decided)
92.8%
100.0%
HMO (29 decided)
37.9%
Loft conversion (21 decided)
100.0%
Check planning approval patterns